svoid benchDrawingImageOnImageWithAlpha() {
  int w = 1000, h = w;
  int[] pixels = repIntAsArray(w*h, -1);
  var img = bufferedImageWithoutAlpha(w, h, pixels);
  pixels = repIntAsArray(w*h, 0x80000000);
  var img2 = bufferedImageWithAlpha(w, h, pixels);
  var g = graphics(img);
  long nanos = benchFor5("draw " + nPixels(w*h), -> drawImage(g, img2));
  print("Fastest result: " + n2(oneBillion()*pixels/nanos) + " pixels/s");
}